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Welcome to The SAI 25: The World's Most Valuable Digital Startups!
Wondering how much your private company is worth? (Or your stock options in your private company?) Curious where your company ranks in the pantheon of digital market values? Wondering which companies might be next in line for a blockbuster IPO? Then you've come to the right place.

In the SAI 25, we value and rank some of the world's leading private digital companies (not all--some. We hope to get them all eventually, but we're going to need a lot more help from you). The SAI 25 is an iterative list: Thanks to input from our readers, sources, and our Advisory Board, it will get more accurate and comprehensive every day. Please help us make it better--by posting insight and information to the company pages or sending to tips@alleyinsider.com.
As always any comments, reactions and feedback are appreciated.